Answer:
The margin of error for a 99% confidence interval for the population mean is 1.8025.
Step-by-step explanation:
We have that to find our 
level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of 
.
So it is z with a pvalue of 
, so 
Now, find the margin of error M as such
In which 
is the standard deviation of the population and n is the size of the sample.
In this problem:
So
The margin of error for a 99% confidence interval for the population mean is 1.8025.
Answer: 8
Explanation:
Form: y = mx + b
Where:
m is the slope
b is the y-intercept
We have:
10x + y = 8
y = -10x + 8
Thus, the y-intercept is 8
Answer:
40x?
Step-by-step explanation:
Since 1/2 =2/4 = 4/8 = 5/10, only Mary drank less than half of her juice. 3/8 is less than 4/8
Answer:
Step-by-step explanation:
5+7x12+75-94x347+7 2/9
